Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-numerical-Easy-Class 11
What is the frequency (ν) of yellow light emitted from a sodium lamp with a wavelength (λ) of 580 nm? (Use the speed of light c = 3 × 10^8 m/s)
A
5.17 × 10^14 Hz
B
6.45 × 10^14 Hz
C
3.45 × 10^14 Hz
D
4.82 × 10^14 Hz
Correct Answer
Option A
Detailed Explanation
The frequency (ν) is calculated using the formula ν = c/λ. Given λ = 580 nm = 580 × 10^-9 m, ν = 3 × 10^8 m/s / 580 × 10^-9 m = 5.17 × 10^14 Hz.
Found an issue with this question?